React: ".map is not a function"

I am building my first React app using Java Spring for the backend. I encountered an issue while trying to fetch data from the API and map it in js. It gives me the error fireteam.map is not a function. Here is the problem code:

import React, { useEffect, useState } from "react";

const FireTeam = () =>{
  const [fireteam, setFireTeam] = useState([]);

  useEffect(() => {
    fetch(`http://localhost:8080/fireteam/id/${localStorage.getItem("fireteamId")}`)
      .then(response => response.json())
      .then(data => {setFireTeam(data)})
  });

  return (
    <div>
      <div>
        {fireteam.map(fteam =>
          <div key={fteam.id}>
            <p>{fteam.name}</p>
          </div>
        )}
      </div>
    </div>
  )
}
export default FireTeam

using console.log at the end of the fetch request to check the data gave me the correct data:

{id: 3, name: 'Intercessors', description: 'fdgdfsggfsd', killTeamId: 1}

So it’s not an issue with how i built my fetch request. I thought it might boil down to timing issues between the fetch() and Javascript trying to map before the data was set, so i tried putting the fetch request in an async/await function and calling it in the UseEffect block, but the problem persists.

>Solution :

Your data is not an array but an object, so using map() won’t work.
map() is a function that only exists for arrays, just like filter(), reduce(), forEeach(), etc. That’s why you have the "is not a function" error.

You need to either make sure you api sends an array, like this :

[{id: 3, name: 'Intercessors', description: 'fdgdfsggfsd', killTeamId: 1}]

Or if you’re sure you’ll always have just an object, do :

setFireTeam([data])